Stroller frame tubing



FIG. 1 is a perspective view of a stroller frame tubing, showing our new design;

FIG. 2 is a perspective view of the fragmentary section taken from lines 2-2 in FIG. 1;

FIG. 3 is front elevation view thereof;

FIG. 4 is a left side elevation view thereof;

FIG. 5 is a right side elevation view thereof;

FIG. 6 is a rear elevation view thereof;

FIG. 7 is a top plan view thereof; and,

FIG. 8 is a bottom plan view thereof.

The broken lines illustrated environmental structure and form no part of the claimed design. 

The ornamental design for stroller frame tubing, as shown and described. 